CN111850927B

CN111850927B - Drum washing machine

Info

Publication number: CN111850927B
Application number: CN201910360097.XA
Authority: CN
Inventors: 赵志强; 吕佩师; 许升
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2023-06-13
Anticipated expiration: 2039-04-30
Also published as: CN111850927A

Abstract

The present invention provides a drum washing machine, comprising: an inner cylinder; an inner cylinder door which can be opened/closed and is arranged on a cylinder opening of the inner cylinder; the inner barrel and the inner barrel door form an independent washing chamber together, and washing water is independently contained when clothes are washed. According to the drum washing machine, the inner drum door is arranged on the drum opening of the inner drum, the inner drum door is of a non-porous drum design, an independent washing chamber is formed by the inner drum door and the non-porous drum, washing water is independently contained when clothes are washed, and washing/rinsing water does not need to be filled between the inner drum and the outer drum, so that the washing water consumption of the washing machine is greatly reduced; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the health and the user experience of the user are greatly improved, and the water resource is greatly saved.

Description

Drum washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a drum washing machine.

Background

The washing machine is used as a household appliance which is most widely used in daily life of people, helps people get rid of the trouble of washing clothes, and brings great convenience to people. However, with the improvement of the living standard of people, the washing requirements for the washing machine are increasing, and in particular, the washing of different types of clothes cannot be mixed in the same washing drum, or the clothes of each family member cannot be mixed in the same washing drum, so that the requirement for separate washing becomes a requirement.

In order to solve the aim of independent washing of the subareas, the prior application number is 201410806293.2, and the name is: the invention provides a Chinese patent invention of a double-drum washing machine, which comprises a shell, a control panel, a first containing cavity and a second containing cavity, wherein the first containing cavity and the second containing cavity are concentric, the radius of the second containing cavity is smaller than that of the first containing cavity, and the control panel can control the first containing cavity and the second containing cavity to work simultaneously or can control the first containing cavity and the second containing cavity to work independently. The invention has the beneficial effects that the space occupied by the washing machine is reduced by the ingenious design of the structure, underwear and outerwear are realized, light-colored clothes and dark-colored clothes can be washed in one washing process, the energy consumption is saved, the washing requirements of different clothes are met, and a good washing effect is achieved.

The drum washing machine of said invention has the first and second cavities to meet the washing requirements of different clothes, but when the first and second cavities are working at the same time, the two cavities are communicated due to the dewatering holes on the inner drum, and the independent partition washing of two cavities can not be realized.

In addition, demands for water saving and self-cleaning properties of the washing machine are increasing.

In view of this, the present invention has been made.

Disclosure of Invention

In order to solve the above problems, the present invention provides a drum washing machine, specifically, the following technical solutions are adopted:

a drum washing machine, comprising:

an inner cylinder;

an inner cylinder door which can be opened/closed and is arranged on a cylinder opening of the inner cylinder;

the inner barrel and the inner barrel door form an independent washing chamber together, and washing water is independently contained when clothes are washed.

Further, the inner cylinder is a hole-free cylinder, one side edge of the inner cylinder door is rotatably arranged on the cylinder opening of the inner cylinder through an inner cylinder door hinge, and the inner cylinder door rotates to close the cylinder opening of the inner cylinder to form an independent washing chamber together with the inner cylinder.

Further, an inner cylinder door lock hole is formed in the edge, opposite to the hinge, of the cylinder opening of the inner cylinder door/the cylinder opening of the inner cylinder, an inner cylinder door lock tongue is correspondingly arranged on the cylinder opening/the inner cylinder door of the inner cylinder, and the inner cylinder door lock tongue is in locking fit with the inner cylinder door lock hole.

Further, the inner cylinder door frame is arranged on the cylinder mouth of the inner cylinder, and the inner cylinder door can be opened/closed and is arranged on the inner cylinder door frame.

Further, a sealing device for sealing the cylinder opening of the inner cylinder when the inner cylinder door is closed is arranged on the inner cylinder door;

preferably, the sealing device comprises a sealing ring matched with the shape of the nozzle of the inner cylinder.

Further, the device also comprises a shell and an outer cylinder which is arranged in the shell and coaxially arranged with the inner cylinder, wherein an opening is formed on the shell corresponding to the cylinder opening of the outer cylinder, and an openable/closable door is arranged on the opening of the shell.

Further, one side edge of the machine door is rotatably arranged on the opening of the shell through a machine door hinge;

the door hinge is characterized in that a door lock hole is formed in one side, opposite to the door hinge, of the opening edge of the shell, and a door lock hole tongue matched with the door lock hole is arranged on the door.

Further, a sealing gasket in sealing contact with the inner wall of the shell is arranged on the shell opening of the outer barrel.

Further, a water outlet is formed in the side wall of the inner cylinder, a centrifugal valve used for keeping the water outlet normally closed is arranged on the water outlet, and the water outlet is opened to drain water when the rotating speed of the inner cylinder exceeds a set value by the centrifugal valve.

Further, the water inlet system comprises a water inlet pipeline and an inner cylinder shaft connected with the bottom of the inner cylinder, wherein the inner cylinder shaft is a hollow shaft, and the water inlet pipeline is communicated with the hollow shaft.

According to the drum washing machine, the inner drum door is arranged on the drum opening of the inner drum, the inner drum door is of a non-porous drum design, an independent washing chamber is formed by the inner drum door and the non-porous drum, washing water is independently contained when clothes are washed, and washing/rinsing water does not need to be filled between the inner drum and the outer drum, so that the washing water consumption of the washing machine is greatly reduced; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the health and the user experience of the user are greatly improved, and the water resource is greatly saved.

Drawings

Fig. 1 is a schematic perspective view of a drum washing machine (door closed state) according to the first, second and third embodiments of the present invention;

fig. 2 is a schematic perspective view of a drum washing machine (door open state) according to the first, second and third embodiments of the present invention;

fig. 3 is a front view (door closed state) of a drum washing machine according to the first, second and third embodiments of the present invention;

fig. 4 is a front view (door open state) of a drum washing machine according to the first, second and third embodiments of the present invention;

FIG. 5 is a cross-sectional view of a drum washing machine according to the first, second and third embodiments of the present invention taken along the A-A plane of FIG. 3;

FIG. 6 is a partial enlarged view of FIG. 5 of a drum washing machine according to a second embodiment of the present invention;

FIG. 7 is a partially enlarged view of FIG. 6 of a drum washing machine according to a second embodiment of the present invention;

FIG. 8 is a partially enlarged view of FIG. 7 of a drum washing machine according to a second embodiment of the present invention;

FIG. 9 is a partially enlarged view of FIG. 7 of a drum type washing machine according to a second embodiment of the present invention;

fig. 10 is a partial enlarged view of fig. 5 of a drum washing machine in accordance with a third embodiment of the present invention;

FIG. 11 is a partially enlarged view of FIG. 10 of a drum washing machine in accordance with a third embodiment of the present invention;

FIG. 12 is a partial enlarged view of FIG. 10 of a drum washing machine in accordance with a third embodiment of the present invention;

FIG. 13 is a schematic view showing the structure of an inner tub door of a drum type washing machine according to a third embodiment of the present invention;

FIG. 14 is a schematic view showing a structure of an inner drum door rotating shaft of a drum washing machine according to a third embodiment of the present invention;

FIG. 15 is a partial enlarged view of an inner tub door of a drum washing machine according to a third embodiment of the present invention;

FIG. 16 is a schematic view of a fourth drum washing machine according to an embodiment of the present invention;

fig. 17 is a schematic diagram of a fifth drum washing machine according to an embodiment of the present invention (first embodiment);

fig. 18 is a schematic diagram of a fifth drum washing machine according to an embodiment of the present invention (second embodiment);

fig. 19 is a schematic diagram of a fifth drum washing machine according to an embodiment of the present invention (third embodiment);

FIG. 20 is a schematic view of a six-drum washing machine according to an embodiment of the present invention;

FIG. 21 is a partial enlarged view (pressure release state) of FIG. 5 of a sixth drum washing machine according to the embodiment of the present invention; the method comprises the steps of carrying out a first treatment on the surface of the

Fig. 22 is a partially enlarged view (pressurized state) of fig. 5 of a sixth drum washing machine in accordance with an embodiment of the present invention;

FIG. 23 is a schematic diagram of a seventh drum washing machine according to an embodiment of the present invention;

fig. 24 is a partial enlarged view of fig. 23 of a seventh drum type washing machine according to an embodiment of the present invention (a pressure release state of the first embodiment);

fig. 25 is a partial enlarged view (pressurized state of embodiment one) of fig. 23 of a seventh drum washing machine according to the embodiment of the present invention;

fig. 26 is a partial enlarged view of fig. 23 of a seventh drum type washing machine according to an embodiment of the present invention (a pressure release state of the second embodiment);

fig. 27 is a partial enlarged view (a supercharging state of the second embodiment) of fig. 23 of a seventh drum washing machine according to the embodiment of the present invention.

Detailed Description

A drum washing machine of the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1 to 27, the present embodiment provides a drum washing machine of a front open type structure of a non-porous inner tub, which has a simple structure and can greatly reduce the amount of washing water used for the washing machine without filling washing/rinsing water between the inner tub and the outer tub. Avoiding the possibility of dirt adhesion between the inner cylinder and the outer cylinder. The health and the user experience of the user are greatly improved, and the water resource is greatly saved.

The drum washing machine of the present embodiment has a housing 19, and the housing 19 includes: top deck 2, front deck, back deck and bottom deck. A foot 9 is fixed on the bottom plate for supporting the whole washing machine. The housing 19 has an outer tube 18 inside, and an inner tube 17 is coaxially provided in the outer tube 18. The outer tube 18 is mainly for collecting the drain water of the inner tube 17 and the drain water of the inner tube 17 by high-speed centrifugal dehydration. The inner drum 17 rotates, preferably with lifting ribs 43, to continuously lift, drop and beat the laundry to wash the laundry. The inner barrel 17 is of non-porous construction. The outer tube 18 has a central mounting hole to which the bearing 12 is mounted and secured. An inner cylinder shaft 13, which is fixedly connected to an inner cylinder 17, passes through the bearing 12 shown and is connected to a drive motor 16. An openable/closable inner cylinder door 6 is arranged on the front cylinder opening of the inner cylinder 17, so that the inner cylinder 17 is of a sealed cabin structure.

The housing 19 of the present embodiment is provided with an openable/closable door 5.

Example 1

As shown in fig. 1 to 5, a drum washing machine of the present embodiment includes:

an inner cylinder 17;

an inner cylinder door 6 which is installed on a cylinder opening of an inner cylinder 17 in an openable/closable manner;

the inner cylinder 17 and the inner cylinder door 6 together form an independent washing chamber, and washing water is independently contained when clothes are washed.

The drum washing machine of the embodiment has the advantages that the drum door 6 is arranged on the drum opening of the inner drum 17, the inner drum 17 is of a non-porous drum design, and the drum door and the non-porous drum form an independent washing chamber together, so that washing water is independently contained during washing clothes, and washing water consumption of the washing machine can be greatly reduced without filling washing/rinsing water between the inner drum and the outer drum; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the health and the user experience of the user are greatly improved, and the water resource is greatly saved.

The inner cylinder 17 in this embodiment is a hole-free cylinder, and one side edge of the inner cylinder door 6 is rotatably mounted on a cylinder opening of the inner cylinder 17 through an inner cylinder door hinge, and the inner cylinder door 6 rotates to close the cylinder opening of the inner cylinder to form an independent washing chamber together with the inner cylinder.

Further, an inner cylinder door lock hole is formed in the edge of one side, opposite to the hinge, of the cylinder opening of the inner cylinder door 6/17, an inner cylinder door lock tongue 601 is correspondingly arranged on the cylinder opening/inner cylinder door of the inner cylinder 17, and the inner cylinder door lock tongue 601 is in locking fit with the inner cylinder door lock hole.

Further, the drum washing machine also comprises an inner drum door frame, wherein the inner drum door frame is arranged on the drum mouth of the inner drum 17, and the inner drum door 6 can be opened/closed and is arranged on the inner drum door frame. Therefore, the structure of the cylinder body of the inner cylinder 17 can be simplified, the inner cylinder door 6 can be mounted, and sealing assembly is facilitated.

In order to form a closed washing chamber, the inner drum door 6 is provided with a sealing device for sealing the drum opening of the inner drum 17 when the inner drum door 6 is closed.

Preferably, the sealing means comprise a sealing ring matching the shape of the mouth of the inner barrel 17.

Further, the drum washing machine further comprises a shell 19 and an outer drum 18 arranged in the shell 19 and coaxial with the inner drum 17, wherein an opening is formed in the shell 19 corresponding to the drum opening of the outer drum, and the opening of the shell 19 is provided with an openable/closable door 5.

Specifically, one side edge of the door 5 is rotatably mounted on the opening of the housing 19 through a door hinge 33; the door lock hole is arranged on one side of the opening edge of the shell 19 opposite to the hinge of the door 6, and a door lock hole tongue 503 matched with the door lock hole is arranged on the door 19.

Further, a gasket 35 is provided on the opening of the outer tube 18 in sealing contact with the inner wall of the housing 19, so as to prevent the entry of droplets of laundry or fine mist of centrifugal water splash into the housing 19.

In order to realize the drainage of the hole-free inner cylinder, a drainage port is formed in the side wall of the inner cylinder 17, a centrifugal valve for keeping the drainage port normally closed is arranged on the drainage port, and the drainage port is opened to drain when the rotation speed of the inner cylinder exceeds a set value.

Example two

As shown in fig. 1 to 9, a drum washing machine of the present embodiment includes:

an inner cylinder 17;

a sealing device is arranged between the opening of the inner cylinder 17 and the inner cylinder door 6, the opening of the inner cylinder 17 is kept sealed and closed by the sealing device when the inner cylinder door 6 is closed, the inner cylinder 17 and the inner cylinder door 6 form an independent washing chamber together, and washing water is independently contained when washing clothes.

The drum washing machine of this embodiment has realized through sealing device that keeps the nozzle of inner tube 17 sealed closed when inner tube door 6 closes for washing water only in the inner tube when washing or rinsing, avoid the inner tube to leak water and influence the washing effect, cause the washing machine unable normal work even.

In order to avoid the problem of water leakage between the nozzle of the inner cylinder 17 and the inner cylinder door 6, the sealing device in this embodiment includes an axial sealing device 37 that seals along the central axis direction of the inner cylinder, where the axial sealing device 37 includes an axial sealing element disposed on the inner cylinder door 6/on the nozzle edge of the inner cylinder 17, and an axial sealing mating portion correspondingly disposed on the nozzle edge of the inner cylinder/on the inner cylinder door, where the axial sealing element is in sealing contact with the axial sealing mating portion along the central axis direction of the inner cylinder. The axial sealing between the inner barrel door 6 and the barrel mouth of the inner barrel 17 is realized by arranging the axial sealing device 37 between the inner barrel door and the barrel mouth of the inner barrel.

Specifically, the axial seal is mounted on the inner barrel door 6, including a curved portion 3702 and a sealing portion 3703; the axial sealing matching part is an annular sinking groove 36 arranged on the edge of the cylinder mouth of the inner cylinder 17; the bending portion 3702 exerts a bending deformation force on the sealing portion 3703 when the inner drum door 6 is closed, and the sealing portion 3703 is axially sealed while maintaining sealing contact with the annular groove 36.

Further, the axial seal 37 further includes a base 3701, and the bent portion 3702 has one end connected to the base 3701 and the other end connected to the seal 3703; the inner barrel door 6 is provided with an annular mounting groove, and the base 3701 is mounted in the annular mounting groove.

Preferably, the base 3707, the bent portion 3702 and the sealing portion 3703 are integrally formed.

The base 3701 of the present embodiment is an annular base block, the bending portion 3702 has at least one bending arm along the central axis of the inner tube 17, and the sealing portion 3703 includes a sealing contact surface parallel to the bottom wall of the annular countersink 36.

Meanwhile, the sealing device according to the present embodiment includes a radial sealing device 38 for sealing along the radial direction of the inner tube 17, the radial sealing device includes a radial sealing member provided on the inner tube door/on the rim of the mouth of the inner tube, and a radial sealing mating portion provided correspondingly on the rim of the mouth of the inner tube/on the inner tube door, and the radial sealing member is held in sealing contact with the radial sealing mating portion along the radial direction of the inner tube.

Further, the radial seal is mounted on the outer peripheral wall of the inner barrel door, and comprises a deformation part 38; the radial sealing matching part is an annular groove 39 arranged on the inner wall of the edge of the nozzle of the inner cylinder; the deformation part 38 is bent to enter the annular groove 39 when the inner barrel door is closed, and the deformation part 38 is kept in sealing contact with the annular groove 39 for radial sealing.

The deformation part is a deformation fin made of elastic materials, the deformation fin is arranged on the outer peripheral wall of the inner barrel door, and the radial height of the annular fin is larger than the interval between the outer periphery of the inner barrel door and the inner wall of the barrel opening of the inner barrel; the axial thickness of the deformation fin is smaller than the width of the notch of the annular groove. This ensures that the annular fin maintains sealing contact with the bottom wall of the annular groove to achieve radial sealing.

In order to realize the sealing of the inner barrel door 6 and the barrel opening of the inner barrel 17 on the whole circumference, the axial sealing element 37 and the radial sealing element are of annular structures, the axial sealing matching part and the radial sealing matching part are arranged on the whole circumference of the edge of the barrel opening of the inner barrel door/the barrel, the axial sealing element and the axial sealing matching part are in sealing contact to realize the axial sealing on the whole circumference, and the radial sealing element and the radial sealing matching part are in sealing contact to realize the radial sealing on the whole circumference.

Further, the inner cylinder door comprises a door outer cover for covering the cylinder opening of the inner cylinder and a door inner cover extending inwards along the axial direction of the inner cylinder;

the axial sealing element is arranged on the inner wall surface of one side of the door outer cover, which is close to the cylinder opening of the inner cylinder, and the annular sinking groove is formed by sinking the outer wall of the edge of the cylinder opening of the inner cylinder towards the inner part of the inner cylinder;

the radial sealing element is arranged on the outer peripheral wall of the door inner cover, and the annular groove is arranged on the inner peripheral wall of the edge of the nozzle of the inner cylinder.

Example III

As shown in fig. 1 to 5 and 10 to 15, a drum washing machine of the present embodiment includes:

an inner cylinder 17;

an inner barrel door 6 comprising a door outer cover and a door inner cover 602 fixedly connected;

the inner cylinder door 6 can be opened/closed and is arranged on the cylinder mouth of the inner cylinder 17, and when the inner cylinder 17 and the inner cylinder door 6 are closed, an independent washing chamber is formed together, and washing water is independently contained when clothes are washed.

As shown in fig. 10 and 11, in particular, the door outer cover includes a base cover 603 and a decorative cover 604, the door inner cover 602 is installed at one side of the base cover 603, and the decorative cover 604 is installed at the other side of the base cover 603.

Preferably, the door inner cover 602 is fixedly connected to the base cover 603 by the screw 42.

The decorative cover 604 is clamped on the base cover 603, specifically, as shown in fig. 15, the base cover 603 has a clamping groove 50, the decorative cover 604 has a claw 51, and the claw 51 cooperates with the clamping groove 50 to realize clamping.

The drum washing machine of the present embodiment further includes an inner drum door shaft 40, and the inner drum door 6 has a shaft groove 41 for mounting the inner drum door shaft.

Preferably, the base cover is provided with a base cover groove, the door inner cover is provided with a door inner cover groove, and the opening of the base cover groove is oppositely arranged at the opening of the door inner cover groove to form a shaft groove.

As shown in fig. 13 and 14, specifically, the inner cylinder door shaft 40 includes a first rotating shaft and a second rotating shaft, an elastic element 49 is disposed between the first rotating shaft and the second rotating shaft, two ends of the elastic element 49 respectively abut against the first rotating shaft and the second rotating shaft, and one end of the first rotating shaft and one end of the second rotating shaft both extend out of the shaft groove under the action of the elastic force of the elastic element for assembling with the rotating shaft hole.

The door inner cover 602 and/or the base cover 603 are provided with a chute 46 communicated with the shaft groove, the first rotating shaft and/or the second rotating shaft are provided with a pushing part 47, and the pushing part 47 is arranged in the chute 46.

In this way, the pushing part 47 is pushed to slide along the sliding groove 46, and the extending end of the inner barrel door shaft 40 is retracted into the shaft hole 48, so that the inner barrel door can be quickly assembled and disassembled.

Further, a first sliding groove and a second sliding groove are formed in the door outer cover, a first pushing part arranged in the first sliding groove is arranged on the first rotating shaft, a second pushing part arranged in the second sliding groove is arranged on the second rotating shaft, the first pushing part is a first protruding block protruding from the first rotating shaft, and the second pushing part is a second protruding block protruding from the second rotating shaft; the elastic piece is a compression spring.

As shown in fig. 12, an inner cylinder door lock bolt 601 is disposed on an edge of the inner cylinder door 6 opposite to the inner cylinder door shaft, an inner cylinder door lock hole 43 is disposed on an edge of the inner cylinder opening of the inner cylinder 17, and the inner cylinder door lock bolt 601 is in locking fit with the inner cylinder door lock hole 43.

Further, the door further comprises an inner cylinder door handle 45, the inner cylinder door handle 45 is rotatably arranged on the door outer cover, and the inner cylinder door handle 45 is provided with a pushing end for pushing the inner cylinder door lock tongue to retract and unlock.

Further, the inner cylinder door 6 is provided with a lock tongue mounting groove, the inner cylinder door lock tongue 601 is telescopically arranged in the lock tongue mounting groove, a compression spring 44 is arranged between the inner cylinder door lock tongue and the lock tongue mounting groove, the middle part of the inner cylinder door handle is rotatably arranged on the inner cylinder door, one end of the inner cylinder door handle is a pushing end acting on the inner cylinder door lock tongue, and the other end of the inner cylinder door handle is a handle end; the inner cylinder door handle is driven to rotate by acting on the handle end, and the pushing end pushes the inner cylinder door lock tongue to retract and unlock along with the rotation of the inner cylinder door handle.

Further, the inner cylinder door lock tongue is provided with a matching groove 605, and the pushing end extends into the matching groove 605.

Preferably, the pushing end is provided with an arc matching surface, and the inner wall of one side, which is in contact with the pushing end, of the matching groove is obliquely arranged.

As an implementation manner of this embodiment, the inner cylinder door 6 is provided with a position detecting device for detecting whether the inner cylinder door is closed in place.

Example IV

The embodiment mainly solves the problem of how to accurately determine the water inflow of the pore-free inner barrel drum washing machine, and the specific scheme is as follows:

the drum washing machine comprises an inner drum 17 and a water inlet pipeline communicated with the inner drum 17, wherein the inner drum 17 is a non-porous inner drum, washing water is contained during washing clothes, and a flow sensor 1 for detecting the flow of the water inlet is arranged on the water inlet pipeline.

In this embodiment, the flow sensor 1 is disposed on the water inlet pipe to monitor the flow rate of the water when the water inlet reaches the set water inlet amount, and the water inlet valve 20 is closed to complete water inlet. The flow sensor is adopted in the embodiment, so that the problem of water inflow of the pore-free inner barrel drum washing machine according to the set water level is solved, the washing effect is ensured, the structure is simple, and the control is convenient.

Further, the drum washing machine of this embodiment includes a water inlet valve 20 and a detergent box 3, the water inlet pipe includes a first water inlet pipe and a second water inlet pipe, an outlet end of the water inlet valve 20 is communicated with the detergent box 3 through the first water inlet pipe, an outlet end of the detergent box 3 is communicated with the inner drum 17 through the second water inlet pipe, and the flow sensor 1 is disposed on the first water inlet pipe or the second water inlet pipe.

Preferably, the flow sensor 1 is arranged on the first inlet pipe, so that the detergent in the detergent box can be placed into the flow sensor 1.

The drum washing machine of the embodiment comprises a main controller 4, wherein the flow sensor 1 is electrically connected with the main controller 4 through a circuit. The main controller 4 can collect the water inflow of the inner cylinder 17 in real time, the water inflow reaches the set water inflow, and the water inlet valve 20 is closed.

As an implementation manner of the present embodiment, the flow sensor 1 is a rotor flow sensor, a turbine flow sensor, an ultrasonic flow sensor, an electromagnetic flow sensor, or an orifice flow sensor.

The flow sensor 1 can be arranged at any position on the water inlet pipe, preferably at the rear part of the water inlet valve 20, and can accurately measure the water flow entering the sealed inner cylinder 17, the flow sensor 1 is connected with the main controller 4, the main controller 4 can collect the water inflow of the inner cylinder 17 in real time, the set water inflow is achieved, and the water inlet valve 20 is closed.

In order to realize water inflow into the nonporous inner cylinder of the embodiment, the drum washing machine of the embodiment comprises a driving motor 16 and an inner cylinder shaft 13, wherein the driving motor 16 is in transmission connection with the inner cylinder 17 through the inner cylinder shaft 13 to drive the inner cylinder 17 to rotate, the inner cylinder shaft 13 is internally provided with a hollow channel 14 communicated with the inner cylinder 17, and the water inflow pipeline is communicated with the hollow channel of the inner cylinder shaft 13.

Specifically, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft 13; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel 14 of the inner barrel shaft 13.

Further, a first dynamic sealing structure 15 is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel 14 of the inner cylinder shaft 13.

In order to realize the drainage of the pore-free inner cylinder, the drum washing machine of the embodiment comprises an outer cylinder 18, an inner cylinder drainage hole is formed in the side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is arranged on the inner cylinder drainage hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open for drainage is arranged on the outer cylinder 18.

As an embodiment of the present embodiment, the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17, and the locking mechanism locks the inner cylinder and then the ejector mechanism 10 pushes the one-way valve plug 11 open to drain water.

As another implementation manner of this embodiment, a plurality of dewatering holes are formed on the side wall of the inner cylinder 17, and centrifugal valves are installed on the dewatering holes, and the inner cylinder is controlled to reach a certain rotation speed, and the centrifugal valves are opened to wash and drain water or dewater and drain water under the action of dewatering centrifugal force.

The embodiment also provides a control method of the drum washing machine, wherein the washing machine executes a washing/rinsing program, in the water inlet process, a flow sensor detects the water inlet flow value in real time, the washing machine calculates the water inlet amount according to the water inlet flow value and the water inlet time, and when the water inlet amount reaches the set water inlet amount of the washing machine, the water inlet is stopped.

The drum washing machine is provided with a plurality of inflow flow values which can be selected by a user, and the washing machine performs water inflow according to the inflow flow values selected by the user.

The drum washing machine has a clothes weighing function, and can determine the flow value of water inflow according to the weight of clothes to perform water inflow.

Example five

As shown in fig. 17-19, a drum washing machine of this embodiment includes an inner drum 17 and a water inlet pipeline, the inner drum is a non-porous inner drum, and holds washing water during washing clothes, and further includes a water metering device for metering water inflow, the water inlet pipeline is communicated with the water metering device, and the water metering device is communicated with the inner drum.

The drum washing machine of this embodiment is through setting up water measuring device, enters into the water measuring device before the water intaking in inwards 1 and carries out quantitative measuring in earlier, confirms the number of times of water measuring device water measuring according to the water level that sets for to solved the problem of intaking of aporate inner tube drum washing machine according to the water level that sets for, ensured the washing effect, simple structure, it is convenient to control.

Further, the water measuring device in this embodiment includes a water measuring tank 21, the water measuring tank 21 has a water inlet and a water outlet, the water inlet is connected with the water inlet pipeline, and the water outlet is connected with the inner cylinder 17; the water outlet is provided with a water outlet control device for controlling the opening of the water outlet when the water quantity in the water tank 21 reaches a set value.

As an implementation manner of this embodiment, as shown in fig. 17, the water tank 21 is disposed at the bottom of the inner cylinder 17, the water tank includes a water level detecting device 22 for detecting the water tank 21, the water outlet control device is a water tank drain pump 23, and the water tank drain pump 23 is started to pump water in the water tank 21 into the inner cylinder 17 when the water level detecting device 22 detects that the water level in the water tank 21 reaches a set value.

As an implementation manner of this embodiment, as shown in fig. 18, the water tank 21 is disposed at an upper portion of the inner cylinder 17, the water tank includes a water level detecting device 22 for detecting the water tank, the water outlet control device is a water tank drain valve 25, and the water tank drain valve 25 is opened to drain water in the water tank 21 into the inner cylinder when the water level detecting device 22 detects that the water level in the water tank 21 reaches a set value.

The water level detecting device 22 in this embodiment is a liquid level sensor, and the liquid level sensor includes an air chamber and a sensor unit, wherein the air chamber is communicated with a water tank. Alternatively, the water level detecting means 22 may include a plurality of water level detecting probes arranged in the depth direction thereof in the water tank.

As an implementation manner of this embodiment, the water tank 21 is disposed at the upper portion of the inner cylinder 17, the water outlet is disposed on the bottom wall of the water tank 21, the water outlet control device is a water tank check valve that keeps the water outlet normally closed, and when the water amount in the equivalent water tank reaches a certain value, the water tank check valve is opened under the gravity of water pressure, and after the water in the water tank 21 is discharged into the inner cylinder 17, the water tank check valve resets to keep the water outlet closed.

The overflow hole 24 is arranged on the water tank 21 in the embodiment, and the overflow hole 24 is connected with an overflow pipeline for guiding out the overflowed water in the water tank.

Preferably, the drum washing machine comprises a drain pipe 8, and the overflow pipe is communicated with the drain pipe 8.

As an implementation of the present embodiment, as shown in fig. 19, the water measuring device includes a heating device 26 provided in the water measuring tank 21 and a water temperature detecting device detecting the water temperature in the water measuring tank.

The embodiment also provides a control method of the drum washing machine, the washing machine executes a washing/rinsing program, the washing machine controls washing water to enter the water tank, when the water quantity in the water tank reaches a set value, water inflow is stopped, water in the water tank is completely discharged into the inner drum, water inflow is started again to enter the water tank, and circulation is performed until the water level in the inner drum reaches the set value, and water inflow is ended.

Further, the washing machine controls the washing water to enter the water measuring tank, when the water quantity in the water measuring tank reaches a set value, water inflow is stopped, the heating device is controlled to operate to heat the washing water, and when the water temperature detection device detects that the water temperature in the water measuring tank reaches the set value, the water in the water measuring tank is completely discharged into the inner barrel.

Example six

The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the non-porous inner cylinder drum washing machine, and particularly, the sudden water interruption of the electromagnetic valve, especially the water interruption of a tap water pipe network, forms negative pressure and backflushes the washing water in the sealed cabin to the pipe network; or the gas exists in the water tank, and the water is difficult to enter.

As shown in fig. 20 to 22, the drum washing machine of the present embodiment includes an inner drum 17, wherein the inner drum 17 is a non-porous inner drum, and is configured to hold washing water during washing laundry, and further includes an air pressure balancing mechanism for communicating the inner drum 17 with an external environment to balance air pressure inside the inner drum.

When water is fed, the air in the sealed cabin of the inner cylinder is pressurized and overflows through the balance mechanism, so that air pressure balance is ensured.

When water is suddenly cut off, the external atmosphere can rapidly enter the sealed cabin of the inner cylinder, reverse suction is destroyed, air pressure balance is ensured, and washing water is prevented from being sucked into a tap water pipe network.

The air pressure balance mechanism can ensure the air pressure balance of the inner cylinder when other materials are dehydrated.

As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole 27 disposed on the inner cylinder 17, where one end of the pressure equalizing hole 27, which is connected to the inner cylinder 17, is disposed on the inner cylinder 17 near the rotation center axis and is always higher than the highest water level in the inner cylinder 17.

The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressure equalizing pore canal 27 is formed in the inner drum shaft 13 to communicate the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than that of the inner drum shaft 13. Thus, the water in the inner cylinder can be prevented from flowing out from the pressure equalizing pore canal.

The drum washing machine of this embodiment includes urceolus 18, inner tube 17 set up in urceolus 18 inside, the water that discharges in the inner tube 17 is discharged through urceolus 18, the inner tube door 6 of sealed inner tube is installed to the nozzle of inner tube 17, the nozzle of urceolus 18 is opened, the one end intercommunication inner tube 17 inside of pressure equalizing duct 27, the other end sets up in urceolus 18 inside and communicates with each other. In this way, the extreme case is prevented, and the hole water can also be collected in the outer tub 18.

Further, in this embodiment, an inner cylinder drain hole is formed in the side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.

Preferably, a locking mechanism for locking the rotation of the inner cylinder is further arranged on the outer cylinder 18, and the locking mechanism pushes the one-way valve plug open for draining after the inner cylinder is locked by the locking mechanism.

Further, the drum washing machine of the embodiment includes a water inlet pipeline, the inner drum shaft 13 is provided with a hollow channel 14 communicating with the inner drum 17, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure equalizing pore canal 27 and the hollow channel 14 are respectively communicated with the inner part of the inner cylinder 17 and are mutually isolated. Thus, the gas in the sealed cabin of the inner cylinder can be smoothly discharged to keep the air pressure balance in the inner cylinder, and meanwhile, the water inflow is prevented from being directly discharged from the pressure equalizing pore canal 27 to leak water.

Specifically, the hollow channel 27 extends from one end to the other end along the central axis direction of the inner cylinder shaft, the pressure equalizing channel comprises a first channel section and a second channel section, the first channel section is arranged in parallel with the hollow channel, one end of the first channel section is communicated with the inside of the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end of the second channel section extends to the peripheral wall of the inner cylinder shaft to be communicated with the inside of the outer cylinder.

Preferably, the second duct section is perpendicular to the first duct section to form an L-shaped pressure equalizing duct.

Further, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel of the inner cylinder shaft.

Preferably, a first dynamic sealing structure is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel of the inner cylinder shaft.

In the drum washing machine of this embodiment, a plurality of dewatering holes are formed in the side wall of the inner drum 17, and centrifugal valves are installed in the dewatering holes, and are opened to dewater and drain under the action of dewatering centrifugal force.

Example seven

As shown in fig. 23-27, the drum washing machine of the present embodiment includes an inner drum 17, wherein the inner drum 17 is a non-porous inner drum, and is used for containing washing water during washing clothes, and further includes a pressurizing mechanism and/or a pressure releasing mechanism for communicating the inner drum with the external environment to balance the air pressure inside the inner drum 17.

The pressurizing mechanism in this embodiment includes a pressurizing channel 28 and a negative pressure relief valve 29, the negative pressure relief valve 29 is disposed on the pressurizing channel 28, and is used for conducting the pressurizing channel 28 in a unidirectional manner when the internal pressure of the inner cylinder 17 is smaller than the external atmospheric pressure, and the external atmospheric gas enters the inner cylinder 17 from the pressurizing channel 28 to be pressurized until the internal air pressure of the inner cylinder 17 is balanced with the external atmospheric pressure, and the negative pressure relief valve 29 is closed.

The pressure release mechanism in this embodiment includes pressure release pore canal 30 and positive pressure relief valve 31, pressure release pore canal 30 set up on inner tube 17 be close to rotation center axis position department and be higher than the highest water level position in the inner tube 17 all the time, positive pressure relief valve 31 set up on pressure release pore canal 30 for the pressure release is carried out to the unidirectional conduction pressure release pore canal 30 when inner tube 17 internal pressure is greater than external environment atmospheric pressure, until inner tube 17 internal air pressure and external environment atmospheric pressure balance, positive pressure relief valve 31 is closed.

As shown in fig. 24, when water is fed, the gas in the sealed cabin of the inner cylinder 17 is pressurized, and once the pressure is larger than the set value of the positive pressure safety valve, the positive pressure safety valve is opened and overflows through the pressure relief pore canal, so that the air pressure balance is ensured.

As shown in fig. 24, when water is suddenly cut off, the air in the sealed cabin of the inner cylinder 17 is pressurized, once the air is smaller than the set value of the positive pressure safety valve, the external atmosphere can rapidly enter the sealed cabin, reverse suction is destroyed, air pressure balance is ensured, and washing water is prevented from being sucked into a tap water pipe network.

The drum washing machine of this embodiment includes driving motor 16 and inner tube axle 13, driving motor 16 drive inner tube 17 rotation through interior tube axle 13 and inner tube 17 transmission connection, pressure boost pore 28 and/or pressure release pore 30 set up on inner tube axle 13 intercommunication inner tube 17 inside and external environment, the highest water level in inner tube 17 is less than inner tube axle 13.

The drum washing machine of this embodiment includes the urceolus 18, the inner tube 17 set up in urceolus 18 inside, the water that discharges in the inner tube 17 is discharged through urceolus 18, the drum mouth installation of inner tube 17 seals the inner tube door 6 of inner tube, the drum mouth of urceolus 18 is opened, the one end intercommunication inner tube 17 inside of pressure boost pore canal 28 and/or pressure release pore canal 30, the other end sets up in urceolus 18 inside and communicates with each other.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in the inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure relief pore canal 30 and the hollow channel 14 are respectively communicated with the inner part of the inner cylinder 17 and are mutually isolated.

As shown in fig. 24 and 25, the hollow channel 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, the pressure relief channel 30 includes a first channel section and a second channel section, the first channel section is parallel to the hollow channel, one end of the first channel section is communicated with the inside of the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end extends to the outer peripheral wall of the inner cylinder shaft to be communicated with the inside of the outer cylinder;

preferably, the second duct section is perpendicular to the first duct section to form an L-shaped pressure relief duct.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in the inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the plenum duct 28 communicates with the hollow passage 14.

Further, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, one end of the pressurizing passage 28 is communicated with the hollow passage 14, and the other end extends to the outer peripheral wall of the inner cylinder shaft 13 and is communicated with the inside of the outer cylinder 18.

Preferably, the plenum 28 is disposed perpendicular to the hollow passage 14.

The inner cylinder shaft is connected with a driving motor, the driving motor comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel of the inner cylinder shaft.

As shown in fig. 26 and 27, the pressurizing duct 28 and the pressure releasing duct 30 are both provided on the inner cylinder shaft 13, and the communicating atmosphere openings are both inside the outer cylinder 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all at the inner side of the water inlet channel 14 of the inner cylinder shaft 13.

It may be mentioned that the preferred pressurizing duct 28 and the pressure releasing duct 30 are both provided on the inner cylinder shaft 13, and the communicating atmosphere openings are both inside the outer cylinder 18; the openings of the capsule communicating with the inner tube 17 are all inside the capsule.

The above embodiments may be implemented alone or in combination with each other.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims

1. A drum washing machine, comprising:

the inner cylinder is a nonporous inner cylinder;

an inner cylinder door which can be opened/closed and is arranged on a cylinder opening of the inner cylinder, and a sealing device is arranged between the cylinder opening of the inner cylinder and the inner cylinder door;

the inner barrel and the inner barrel door form an independent washing chamber together, and washing water is independently contained when clothes are washed;

one side edge of the inner barrel door is rotatably arranged on the barrel opening of the inner barrel through an inner barrel door hinge, and the barrel opening of the inner barrel is rotatably closed by the inner barrel door to form an independent washing chamber together with the inner barrel;

the sealing device comprises a radial sealing device for sealing along the radial direction of the inner cylinder, wherein the radial sealing device comprises a radial sealing element arranged on the inner cylinder door/on the edge of the cylinder opening of the inner cylinder and a radial sealing matching part correspondingly arranged on the edge of the cylinder opening of the inner cylinder/on the inner cylinder door;

the radial sealing element is arranged on the outer peripheral wall of the inner barrel door and comprises a deformation part; the radial sealing matching part is an annular groove arranged on the inner wall of the edge of the cylinder opening of the inner cylinder; the deformation part is bent to enter the annular groove when the inner barrel door is closed, and the deformation part is kept in sealing contact with the annular groove for radial sealing;

the deformation part is a deformation fin made of elastic materials, the deformation fin is arranged on the outer peripheral wall of the inner barrel door, and the radial height of the annular fin is larger than the interval between the outer periphery of the inner barrel door and the inner wall of the barrel opening of the inner barrel; the axial thickness of the deformation fin is smaller than the width of the notch of the annular groove;

the sealing device also comprises an axial sealing device for sealing along the central axis direction of the inner cylinder, the axial sealing device comprises an axial sealing element arranged on the inner cylinder door/on the edge of the cylinder opening of the inner cylinder and an axial sealing matching part correspondingly arranged on the edge of the cylinder opening of the inner cylinder/on the inner cylinder door, and the axial sealing element is kept in sealing contact with the axial sealing matching part along the central axis direction of the inner cylinder;

the axial sealing device comprises a bending part and a sealing part; the axial sealing matching part is an annular sinking groove arranged on the edge of the cylinder opening of the inner cylinder; the bending part is bent and deformed to apply force on the sealing part when the inner barrel door is closed, and the sealing part is kept in sealing contact with the annular sinking groove to axially seal;

the drum washing machine also comprises a water measuring device for measuring water inflow, the water inlet pipeline is communicated with the water measuring device, and the water measuring device is communicated with the inner barrel;

the water metering device comprises a water metering tank which is provided with a water inlet and a water outlet, the water inlet is communicated with a water inlet pipeline, the water outlet is communicated with the inner cylinder, and a water outlet control device for controlling the water outlet to be opened when the water quantity in the water metering tank reaches a set value is arranged on the water outlet.

2. The drum washing machine as claimed in claim 1, wherein an inner drum door locking hole is formed at an edge of a drum opening of the inner drum door/drum opposite to the hinge, an inner drum door locking bolt is correspondingly formed at the drum opening/inner drum door of the inner drum, and the inner drum door locking bolt is in locking fit with the inner drum door locking hole.

3. The drum type washing machine as claimed in claim 1, further comprising an inner drum door frame mounted to a drum opening of the inner drum, the inner drum door being openable/closable mounted to the inner drum door frame.

4. A drum washing machine as claimed in any one of claims 1-3, wherein said sealing means comprises a sealing ring matching the shape of the mouth of the inner drum.

5. A drum type washing machine as claimed in any one of claims 1 to 3, further comprising a housing and an outer tub coaxially disposed with the inner tub and disposed in the housing, wherein the housing is provided with an opening corresponding to a tub opening of the outer tub, and the opening of the housing is provided with an openable/closable door.

6. The drum type washing machine as claimed in claim 5, wherein one side edge of the door is rotatably installed at the opening of the housing by a door hinge; the door hinge is characterized in that a door lock hole is formed in one side, opposite to the door hinge, of the opening edge of the shell, and a door lock hole tongue matched with the door lock hole is arranged on the door.

7. The drum type washing machine as claimed in claim 5, wherein a gasket is provided on the tub mouth of the tub to be in sealing contact with the inner wall of the casing.

8. A drum washing machine as claimed in any one of claims 1 to 3, wherein a drain opening is provided in a side wall of the inner tub, a centrifugal valve for keeping the drain opening normally closed is provided in the drain opening, and the centrifugal valve opens the drain opening to drain water when the rotational speed of the inner tub exceeds a set value.

9. A drum washing machine as claimed in any one of claims 1 to 3, further comprising a water inlet system and an inner drum shaft connected to the bottom of the inner drum, wherein the inner drum shaft is a hollow shaft, and the water inlet system comprises a water inlet pipeline, and the water inlet pipeline is communicated with the hollow shaft.